Halcyon Soft Touch Feel Coating. Metallic Silver Accent at Top of Tumbler. Cork-Look Rubberized Base. Hand wash only. Double Wall Tumbler with Stainless Steel Outside and Black Polypropylene Insert. Stainless steel straw and flip top lid combo - use with or without straw. Liquids will stay hot for about 2 hours and cold for about 8.5 hours.